Question

The ratio of value of magnetic field at same distance form mid point of a small magnet at its axis and equatorial position is

Answer 1

Answer:

2:1

Explanation:

see attachment

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Answer 2

The ratio of value of magnetic field at same distance from Mid point of a small magnet at its axis and equatorial position is 2 : 1

Explanation:

Magnetic induction at the point on the equator of a magnet is given by ,

          $B = \frac{u_{0} }{4\pi } \frac{M}{r^{3} }$

Where $u_{0}$ is permeability of medium, M is magnetic moment  and r is the distance between mid point of magnet and point of observation.

again, magnetic Induction of a point on the axis of a magnet is given by

           $B^{' = \frac{u_{0} }{4\pi } } \frac{2M}{r^{3} }$

Now, ratio of magnetic field = $\frac{B^{'} }{B}$

        = 2 : 1